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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1131 (Sunroof System) >> Diagnostic Information and Procedures >> Power Sunroof/Sunshade Inoperative >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ 1, 3 1, 3 - -
Ignition 1, 3 1, 3 - -
Serial Data 3 3 3 -
Sunroof Switch Close Signal 1, 3 1 1, 3 -
Sunroof Switch Open Signal 1, 3 1 1, 3 -
Sunshade Switch Close Signal 1, 3 3 1, 3 -
Sunshade Switch Open Signal 1, 3 3 1, 3 -
Ground - Sunroof Switch - 1, 3 - -
Ground - Sunroof Motor/Actuator - 1, 3 - -
Ground - Sunshade Motor/Actuator - 3 - -
1. Power Sunroof Inoperative
2. Power Sunroof Express Open/Close Features Inoperative
3. Power Sunshade Inoperative - Front
4. Power Sunshade Express Open/Close Features Inoperative